Home / 778,894.40-1,168,341.60-740,403.20

Finding the Fourth Proportional to 778,894.40, 1,168,341.60 and 740,403.20

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Solution

The fourth proportional to 778,894.40, 1,168,341.60 and 740,403.20 is: 1,110,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,894.40 : 1,168,341.60 = 740,403.20 : x
  2. Step 2: Convert to fraction form
    778,894.40/1,168,341.60 = 740,403.20/x
  3. Step 3: Cross multiply
    778,894.40x = 1,168,341.60 × 740,403.20
  4. Step 4: Simplify right side
    778,894.40x = 865,043,859,333.12
  5. Step 5: Solve for x
    x = 865,043,859,333.12/778,894.40
  6. Step 6: Final answer
    x = 1,110,604.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.